Add option to use mocked TPM driver

firmware/lib/tpm_lite/mocked_tlcl.c

+/* Copyright (c) 2010-2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "tlcl.h"
+#include "tlcl_internal.h"
+
+uint32_t TlclLibInit(void) {
+  return TlclStubInit();
+}
+
+uint32_t TlclStartup(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclSaveState(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclResume(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclSelfTestFull(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclContinueSelfTest(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclDefineSpace(uint32_t index, uint32_t perm, uint32_t size) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclWrite(uint32_t index, const void* data, uint32_t length) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclRead(uint32_t index, void* data, uint32_t length) {
+  Memset(data, '\0', length);
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclWriteLock(uint32_t index) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclReadLock(uint32_t index) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclAssertPhysicalPresence(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclPhysicalPresenceCMDEnable(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclFinalizePhysicalPresence(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclAssertPhysicalPresenceResult(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclLockPhysicalPresence(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclSetNvLocked(void) {
+  return TPM_SUCCESS;
+}
+
+int TlclIsOwned(void) {
+  return 0;
+}
+
+uint32_t TlclForceClear(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclSetEnable(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclClearEnable(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclSetDeactivated(uint8_t flag) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclGetPermanentFlags(TPM_PERMANENT_FLAGS* pflags) {
+  Memset(pflags, '\0', sizeof(*pflags));
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclGetSTClearFlags(TPM_STCLEAR_FLAGS* vflags) {
+  Memset(vflags, '\0', sizeof(*vflags));
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclGetFlags(uint8_t* disable,
+                      uint8_t* deactivated,
+                      uint8_t *nvlocked) {
+  *disable = 0;
+  *deactivated = 0;
+  *nvlocked = 0;
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclSetGlobalLock(void) {
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclExtend(int pcr_num, const uint8_t* in_digest,
+                    uint8_t* out_digest) {
+  Memcpy(out_digest, in_digest, kPcrDigestLength);
+  return TPM_SUCCESS;
+}
+
+uint32_t TlclGetPermissions(uint32_t index, uint32_t* permissions) {
+  *permissions = 0;
+  return TPM_SUCCESS;
+}